Billy the fastballer

Billy was a fastball pitcher.
He threw fastballs.
Really fast. Faster than any other pitcher.
They were really dangerous.
Two hundred, three hundred miles per hour.
So fast, nobody could hit them.
If you tried to hit them, you’d shatter your bat.
Or if the ball was off-target, you’d get your arm or leg or skull shattered.
Nobody could catch them either.
He killed a few catchers that way.
The first one, total accident.
After that, yeah, should have learned their lesson with the first dead catcher.
Billy was banned from baseball.
Became a superhero.
Until somebody shot him dead.